Fix init async resources in container on Python 2

src/dependency_injector/containers.c

@@ -2520,6 +2520,14 @@ static void __Pyx_WriteUnraisable(const char *name, int clineno,
                                   int lineno, const char *filename,
                                   int full_traceback, int nogil);
 
+/* GetException.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_GetException(type, value, tb)  __Pyx__GetException(__pyx_tstate, type, value, tb)
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
+#endif
+
 /* py_dict_items.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyDict_Items(PyObject* d);
 
@@ -2629,14 +2637,6 @@ static PyObject* __Pyx_patch_inspect(PyObject* module);
 /* PatchAsyncIO.proto */
 static PyObject* __Pyx_patch_asyncio(PyObject* module);
 
-/* GetException.proto */
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-#define __Pyx_GetException(type, value, tb)  __Pyx__GetException(__pyx_tstate, type, value, tb)
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
-#endif
-
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 static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
 
@@ -2886,6 +2886,7 @@ static PyTypeObject *__pyx_ptype_19dependency_injector_10containers___pyx_scope_
 static PyTypeObject *__pyx_ptype_19dependency_injector_10containers___pyx_scope_struct_5_copy = 0;
 static int __pyx_f_19dependency_injector_10containers_is_container(PyObject *, int __pyx_skip_dispatch); /*proto*/
 static PyObject *__pyx_f_19dependency_injector_10containers__check_provider_type(PyObject *, PyObject *, int __pyx_skip_dispatch); /*proto*/
+static int __pyx_f_19dependency_injector_10containers__isawaitable(PyObject *, int __pyx_skip_dispatch); /*proto*/
 #define __Pyx_MODULE_NAME "dependency_injector.containers"
 extern int __pyx_module_is_main_dependency_injector__containers;
 int __pyx_module_is_main_dependency_injector__containers = 0;
@@ -3213,6 +3214,7 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_4copy__decorator(Py
 static PyObject *__pyx_pf_19dependency_injector_10containers_6copy(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_container); /* proto */
 static PyObject *__pyx_pf_19dependency_injector_10containers_8is_container(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_instance); /* proto */
 static PyObject *__pyx_pf_19dependency_injector_10containers_10_check_provider_type(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_container, PyObject *__pyx_v_provider); /* proto */
+static PyObject *__pyx_pf_19dependency_injector_10containers_12_isawaitable(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_instance); /* proto */
 static PyObject *__pyx_tp_new_19dependency_injector_10containers___pyx_scope_struct____new__(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_19dependency_injector_10containers___pyx_scope_struct_1_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_19dependency_injector_10containers___pyx_scope_struct_2_genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
@@ -6448,7 +6450,7 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
  * 
  *             resource = provider.init()             # <<<<<<<<<<<<<<
  * 
- *             if inspect.isawaitable(resource):
+ *             if _isawaitable(resource):
  */
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@@ -6473,37 +6475,16 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
     /* "dependency_injector/containers.pyx":232
  *             resource = provider.init()
  * 
- *             if inspect.isawaitable(resource):             # <<<<<<<<<<<<<<
+ *             if _isawaitable(resource):             # <<<<<<<<<<<<<<
  *                 futures.append(resource)
  * 
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-    __Pyx_GetModuleGlobalName(__pyx_t_2, __pyx_n_s_inspect); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 232, __pyx_L1_error)
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       /* "dependency_injector/containers.pyx":233
  * 
- *             if inspect.isawaitable(resource):
+ *             if _isawaitable(resource):
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  * 
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@@ -6513,7 +6494,7 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
       /* "dependency_injector/containers.pyx":232
  *             resource = provider.init()
  * 
- *             if inspect.isawaitable(resource):             # <<<<<<<<<<<<<<
+ *             if _isawaitable(resource):             # <<<<<<<<<<<<<<
  *                 futures.append(resource)
  * 
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@@ -6555,12 +6536,12 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
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@@ -6758,7 +6739,7 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
  * 
  *             shutdown = provider.shutdown()             # <<<<<<<<<<<<<<
  * 
- *             if inspect.isawaitable(shutdown):
+ *             if _isawaitable(shutdown):
  */
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@@ -6783,37 +6764,16 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
     /* "dependency_injector/containers.pyx":247
  *             shutdown = provider.shutdown()
  * 
- *             if inspect.isawaitable(shutdown):             # <<<<<<<<<<<<<<
+ *             if _isawaitable(shutdown):             # <<<<<<<<<<<<<<
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  * 
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  * 
- *             if inspect.isawaitable(shutdown):
+ *             if _isawaitable(shutdown):
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  * 
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@@ -6823,7 +6783,7 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
       /* "dependency_injector/containers.pyx":247
  *             shutdown = provider.shutdown()
  * 
- *             if inspect.isawaitable(shutdown):             # <<<<<<<<<<<<<<
+ *             if _isawaitable(shutdown):             # <<<<<<<<<<<<<<
  *                 futures.append(shutdown)
  * 
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@@ -6865,12 +6825,12 @@ static PyObject *__pyx_pf_19dependency_injector_10containers_16DynamicContainer_
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@@ -11114,6 +11074,7 @@ static PyObject *__pyx_f_19dependency_injector_10containers__check_provider_type
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@@ -11122,6 +11083,8 @@ static PyObject *__pyx_f_19dependency_injector_10containers__check_provider_type
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+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("_isawaitable (wrapper)", 0);
+  __pyx_r = __pyx_pf_19dependency_injector_10containers_12_isawaitable(__pyx_self, ((PyObject *)__pyx_v_instance));
+
+  /* function exit code */
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
+static PyObject *__pyx_pf_19dependency_injector_10containers_12_isawaitable(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_instance) {
+  PyObject *__pyx_r = NULL;
+  __Pyx_RefNannyDeclarations
+  PyObject *__pyx_t_1 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannySetupContext("_isawaitable", 0);
+  __Pyx_XDECREF(__pyx_r);
+  __pyx_t_1 = __Pyx_PyBool_FromLong(__pyx_f_19dependency_injector_10containers__isawaitable(__pyx_v_instance, 0)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 521, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_r = __pyx_t_1;
+  __pyx_t_1 = 0;
+  goto __pyx_L0;
+
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("dependency_injector.containers._isawaitable", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = NULL;
+  __pyx_L0:;
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
+
 /* "providers.pxd":298
  * 
  * # Inline helper functions
@@ -13504,6 +13666,7 @@ static PyTypeObject __pyx_type_19dependency_injector_10containers___pyx_scope_st
 static PyMethodDef __pyx_methods[] = {
   {"is_container", (PyCFunction)__pyx_pw_19dependency_injector_10containers_9is_container, METH_O, __pyx_doc_19dependency_injector_10containers_8is_container},
   {"_check_provider_type", (PyCFunction)(void*)(PyCFunctionWithKeywords)__pyx_pw_19dependency_injector_10containers_11_check_provider_type, METH_VARARGS|METH_KEYWORDS, 0},
+  {"_isawaitable", (PyCFunction)__pyx_pw_19dependency_injector_10containers_13_isawaitable, METH_O, 0},
   {0, 0, 0, 0}
 };
 
@@ -14145,6 +14308,7 @@ static int __Pyx_modinit_function_export_code(void) {
   /*--- Function export code ---*/
   if (__Pyx_ExportFunction("is_container", (void (*)(void))__pyx_f_19dependency_injector_10containers_is_container, "int (PyObject *, int __pyx_skip_dispatch)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   if (__Pyx_ExportFunction("_check_provider_type", (void (*)(void))__pyx_f_19dependency_injector_10containers__check_provider_type, "PyObject *(PyObject *, PyObject *, int __pyx_skip_dispatch)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  if (__Pyx_ExportFunction("_isawaitable", (void (*)(void))__pyx_f_19dependency_injector_10containers__isawaitable, "int (PyObject *, int __pyx_skip_dispatch)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -17199,6 +17363,80 @@ static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
 #endif
 }
 
+/* GetException */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+    }
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
 /* UnpackUnboundCMethod */
 static int __Pyx_TryUnpackUnboundCMethod(__Pyx_CachedCFunction* target) {
     PyObject *method;
@@ -17733,80 +17971,6 @@ ignore:
     return module;
 }
 
-/* GetException */
-#if CYTHON_FAST_THREAD_STATE
-static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
-#else
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
-#endif
-{
-    PyObject *local_type, *local_value, *local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-#else
-    PyErr_Fetch(&local_type, &local_value, &local_tb);
-#endif
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-#if CYTHON_FAST_THREAD_STATE
-    if (unlikely(tstate->curexc_type))
-#else
-    if (unlikely(PyErr_Occurred()))
-#endif
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (local_tb) {
-        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-            goto bad;
-    }
-    #endif
-    Py_XINCREF(local_tb);
-    Py_XINCREF(local_type);
-    Py_XINCREF(local_value);
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-#if CYTHON_FAST_THREAD_STATE
-    #if CYTHON_USE_EXC_INFO_STACK
-    {
-        _PyErr_StackItem *exc_info = tstate->exc_info;
-        tmp_type = exc_info->exc_type;
-        tmp_value = exc_info->exc_value;
-        tmp_tb = exc_info->exc_traceback;
-        exc_info->exc_type = local_type;
-        exc_info->exc_value = local_value;
-        exc_info->exc_traceback = local_tb;
-    }
-    #else
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    #endif
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
 /* ImportFrom */
 static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
     PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);

src/dependency_injector/containers.pxd

@@ -11,3 +11,6 @@ cpdef bint is_container(object instance)
 
 
 cpdef object _check_provider_type(object container, object provider)
+
+
+cpdef bint _isawaitable(object instance)

src/dependency_injector/containers.pyx

@@ -229,7 +229,7 @@ class DynamicContainer(object):
 
             resource = provider.init()
 
-            if inspect.isawaitable(resource):
+            if _isawaitable(resource):
                 futures.append(resource)
 
         if futures:
@@ -244,7 +244,7 @@ class DynamicContainer(object):
 
             shutdown = provider.shutdown()
 
-            if inspect.isawaitable(shutdown):
+            if _isawaitable(shutdown):
                 futures.append(shutdown)
 
         if futures:
@@ -516,3 +516,10 @@ cpdef object _check_provider_type(object container, object provider):
     if not isinstance(provider, container.provider_type):
         raise Error('{0} can contain only {1} '
                     'instances'.format(container, container.provider_type))
+
+
+cpdef bint _isawaitable(object instance):
+    try:
+        return <bint> inspect.isawaitable(instance)
+    except AttributeError:
+        return <bint> False

tests/unit/containers/test_dynamic_async_resources_py36.py

@@ -1,4 +1,4 @@
-"""Dependency injector dynamic container unit tests."""
+"""Dependency injector dynamic container unit tests for async resources."""
 
 import unittest2 as unittest
 
@@ -21,7 +21,7 @@ from dependency_injector import (
 )
 
 
-class AsyncResourcesInitializationTest(AsyncTestCase):
+class AsyncResourcesTest(AsyncTestCase):
 
     @unittest.skipIf(sys.version_info[:2] <= (3, 5), 'Async test')
     def test_async_init_resources(self):